Dan Dierdorf and Greg Gumbel were paired up by CBS prior to the start of the 2006 NFL season, so this is their seventh together. Dierdorf proved that he may literally not know an ass from an elbow during an official review today and, as you can hear above, is also calling Greg Gumbel "Bill." There's some discussion… »12/16/12 3:45pm 12/16/12 3:45pm